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Replaced glLoadGen loader with glad loader and dynamically load EGL and GLES extensions as is done for desktop GL.

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Lukas Dürrenberger 2019-04-13 13:16:32 +02:00 • committed by Lukas Dürrenberger
parent f2b8e6397b
commit 2eb70c6537
44 changed files with 35003 additions and 3965 deletions
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31
examples/X11/X11.cpp
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@ -4,7 +4,10 @@
////////////////////////////////////////////////////////////
#include <SFML/Window.hpp>
#include <SFML/System/Err.hpp>
#include <SFML/OpenGL.hpp>
#define GLAD_GL_IMPLEMENTATION
#include "gl.h"
#include <X11/Xlib.h>
#include <iostream>
#include <cmath>
@ -23,7 +26,13 @@ void initialize(sf::Window& window)
// Setup OpenGL states
// Set color and depth clear value
#ifdef SFML_OPENGL_ES
glClearDepthf(1.f);
#else
glClearDepth(1.f);
#endif
glClearColor(0.f, 0.5f, 0.5f, 0.f);
// Enable Z-buffer read and write
@ -33,9 +42,14 @@ void initialize(sf::Window& window)
// Setup a perspective projection
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
static const double pi = 3.141592654;
GLdouble extent = std::tan(90.0 * pi / 360.0);
glFrustum(-extent, extent, -extent, extent, 1.0, 500.0);
static const float pi = 3.141592654f;
float extent = std::tan(90.0f * pi / 360.0f);
#ifdef SFML_OPENGL_ES
glFrustumf(-extent, extent, -extent, extent, 1.0f, 500.0f);
#else
glFrustum(-extent, extent, -extent, extent, 1.0f, 500.0f);
#endif
// Enable position and texture coordinates vertex components
glEnableClientState(GL_VERTEX_ARRAY);
@ -177,6 +191,15 @@ int main()
// Create a clock for measuring elapsed time
sf::Clock clock;
// Load OpenGL or OpenGL ES entry points using glad
sfmlView1.setActive();
#ifdef SFML_OPENGL_ES
gladLoadGLES1(reinterpret_cast<GLADloadfunc>(sf::Context::getFunction));
#else
gladLoadGL(reinterpret_cast<GLADloadfunc>(sf::Context::getFunction));
#endif
// Initialize our views
initialize(sfmlView1);
initialize(sfmlView2);